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Temporal variability and effect of environmental variables on airborne bacterial communities in an urban area of Northern Italy
The structure of airborne bacterial communities in the urban area of Milan suggests that soil and plants are the sources which contribute most to the airborne communities of Milan atmosphere, but the structure of the bacterial community seems to depend mainly on the source of bacteria that predominates in a given period of time. Expand
A quantitative measure of migratory connectivity.
It is shown that migration of barn swallow populations connects specific breeding and wintering areas, and that the "sub-populations" quantitatively identified by the method are consistent with qualitative patterns of migratory connectivity identified by studies of individual geographical populations based on other methods. Expand
Ecological conditions during winter affect sexual selection and breeding in a migratory bird
It is shown that breeding individuals of a declining population of trans–Saharan migratory barn swallows, Hirundo rustica, were affected by environmental conditions, as estimated from the normalized difference vegetation index (NDVI), reflecting primary production, in their winter quarters. Expand
Mate fidelity, senescence in breeding performance and reproductive trade‐offs in the barn swallow
Barn swallows suffer an age-dependent decline in offspring quality, and apparently trade quality of current offspring against that of subsequent reproductive events, although causality of this relationship could not be assessed in this correlational study. Expand
Climate warming, ecological mismatch at arrival and population decline in migratory birds
Findings provide general support to the largely untested hypotheses that migratory birds are becoming ecologically mismatched and that failure to respond to climate change can have severe negative impacts on their populations. Expand
Sexual Dimorphism in Melanin Pigmentation, Feather Coloration and Its Heritability in the Barn Swallow (Hirundo rustica)
Results show that pigmentation strategies vary in a complex manner according to sex and plumage region, and also among geographical populations, potentially reflecting adaptation to different natural and sexual selection regimes, and that some coloration components seem to be highly heritable. Expand
The distribution and colony size of barn swallows in relation to agricultural land use
Summary 1  The barn swallow Hirundo rustica is a semi-colonial passerine that has declined in some parts of its European range, perhaps as a result of agricultural change. So far, however,Expand
Seasonal variability of bacteria in fine and coarse urban air particulate matter
The results suggest that not only can the sources of the particulate influence the presence of specific bacterial groups but also that environmental factors and stresses can shape the bacterial community. Expand
Antioxidant Defenses Predict Long-Term Survival in a Passerine Bird
Using longitudinal data, it was showed that high levels of antioxidant protection positively predict long-term survival in a wild animal population, strongly demanding for more longitudinal eco-physiological studies of life-histories in relation to oxidative stress in wild populations. Expand
Long-term trends in first arrival and first egg laying dates of some migrant and resident bird species in northern Italy
It is found that the swift and the barn swallow significantly advanced both arrival and laying dates, whereas all other species did not show any significant temporal trend in either arrival or laying date. Expand